CATERPILLAR 12M3 MOTOR GRADERS

Technical Description

The Caterpillar 14M3 motor grader features a powerful Cat C13 ACERT engine delivering 238 hp base power with a VHP range extending to 285 hp, producing maximum torque of 1,137 lbf-ft at 1,850 rpm rated speed. The six-cylinder engine displaces 763 cubic inches (12.5L) with a 5.1-inch bore and 6.2-inch stroke, engineered for consistent grading performance and superior lugging capability. This machine operates at forward speeds up to 31.4 mph and reverse speeds of 24.8 mph, with a 71.7-inch circle diameter enabling tight maneuverability. The moldboard features a 14-foot blade width with adjustable positioning angles up to 40 degrees forward and 5 degrees backward, providing maximum depth-of-cut capability of 23.3 inches. Operating weight is 57,250 pounds with a base GVW of 33,294 pounds, expandable to 41,603 pounds maximum. The machine complies with Tier 4 Final/Stage IV emissions standards and includes standard VHP Plus technology optimizing power delivery across all gears. Advanced features include proportional joystick controls reducing operator fatigue by 78%, load-sensing hydraulics, automatic differential lock, and optional AccuGrade technology for enhanced grading precision. The fuel system comprises 30 gallons for the main tank, 23.5 gallons for transmission/differential, and 26.4 gallons per tandem housing, supporting extended operational periods. Standard Economy Mode limits maximum engine speed to reduce fuel consumption while maintaining productivity in demanding applications.